Respuesta:
El área de la sombreada es:
[tex] \\ area_{sombreada} = 2( {(3 \: cm)}^{2} + \frac{ {(3 \: cm)}^{2} }{2} ) \\ \\ = 2(9 \: {cm}^{2} + \frac{9 \: {cm}^{2} }{2} ) \\ \\ = 18 \: {cm}^{2} + 9 \: {cm}^{2} \\ \\ = 27 \: {cm}^{2} [/tex]
El porcentaje del área sin sombrear:
[tex] \\ area_{total} = 27 \: {cm}^{2} + 2( \frac{9 \: {cm}^{2} }{2} ) \\ \\ = 27 \: {cm}^{2} + 9 \: {cm}^{2} \\ \\ = 36 \: {cm}^{2} \\ \\ area_{no \: sombreda} = 9 \: {cm}^{2} \\ \\ 36 \: {cm}^{2} \rightarrow 100\% \\ 9 \: {cm}^{2} \rightarrow x \\ \\ x = \frac{9 \: {cm}^{2} (100\%)}{36 \: {cm}^{2} } \\ \\ x= \frac{900\%}{36} \\ \\ x = 25\%[/tex]
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Verified answer
Respuesta:
El área de la sombreada es:
[tex] \\ area_{sombreada} = 2( {(3 \: cm)}^{2} + \frac{ {(3 \: cm)}^{2} }{2} ) \\ \\ = 2(9 \: {cm}^{2} + \frac{9 \: {cm}^{2} }{2} ) \\ \\ = 18 \: {cm}^{2} + 9 \: {cm}^{2} \\ \\ = 27 \: {cm}^{2} [/tex]
El porcentaje del área sin sombrear:
[tex] \\ area_{total} = 27 \: {cm}^{2} + 2( \frac{9 \: {cm}^{2} }{2} ) \\ \\ = 27 \: {cm}^{2} + 9 \: {cm}^{2} \\ \\ = 36 \: {cm}^{2} \\ \\ area_{no \: sombreda} = 9 \: {cm}^{2} \\ \\ 36 \: {cm}^{2} \rightarrow 100\% \\ 9 \: {cm}^{2} \rightarrow x \\ \\ x = \frac{9 \: {cm}^{2} (100\%)}{36 \: {cm}^{2} } \\ \\ x= \frac{900\%}{36} \\ \\ x = 25\%[/tex]